OurBigBook automatically adds a table of contents at the end of the first non-toplevel header of every document.
For example, on a standard document with a single toplevel header:the ToC is rendered something like:
= Animal
Animals are cute!
== Dog
== Cat
= Animal
Animals are cute!
Table of Contents
* Dog
* Cat
== Dog
== Cat
The ToC ignores the toplevel header if you have one.
For when you want a quick outline of the header tree on the terminal, also consider the
--log headers
option.